If you want to use rOCCI-server in a production environment, follow the production instructions for installation and configuration, otherwise follow the developer instructions for installation and configuration.
The following setup is required
- Ruby >= 1.8.7
- Bundler gem installed (use
gem install bundler) - OpenNebula >= 3.2 if the OpenNebula backend is used
The following setup is recommended
- usage of the Ruby Version Manger (RVM)
- Ruby >= 1.9.3
Download the latest version from https://github.com/gwdg/rOCCI-server/tags
Extract downloaded file, remove it and change to rOCCI-server directory
unzip gwdg-rOCCI-server-*.zip
rm gwdg-rOCCI-server-*.zip
cd gwdg-rOCCI-server-*
Install dependencies
bundle install --deployment
Checkout latest version from GIT:
git clone git://github.com/gwdg/rOCCI-server.git
Change to rOCCI folder
cd rOCCI-server
Install dependencies
bundle install
rOCCI-server comes with different backends. Check the etc folder for available backends (e.g. dummy, opennebula, ...).
Each backend has an example configuration in a file with the name of the backend and the extension .json. Copy one of
those files (e.g. etc/backend/dummy/dummy.json) to etc/backend/default.json and adapt its content to your setting.
To configure the behaviour of compute, network and storage resource creation, edit the backend specific extensions of
the OCCI model at etc/backend/$BACKEND/model (e.g. etc/backend/dummy/model for the dummy backend).
To change the predefined resource or OS templates, you can adapt the existing templates in etc/backend/$BACKEND/templates
or add new templates. If resource or OS templates are already registered in the backend, they will be automatically
discovered by rOCCI-server.
If you want to change the actual deployment within OpenNebula you can change the OpenNebula templates in the files in
etc/backend/opennebula/one_templates.
Templates registered within OpenNebula will be made available by rOCCI as OS templates. To properly use these templates
ensure that the permissions are set correctly. If the templates are only used by the owner of the template, the
permission must be 400 or u--for the user. If the templates should be used by users from the same group, the
permissions must at least be 440 or uu- for both user and group. If you want to combine OS templates with resource
templates, you must ensure that rOCCI can modify the resource templates. Thus the permissions must be 600 or um-
for the user or 660 or um- for both user and group.
To configure resource templates (e.g. small, medium, large, ...) change the files in etc/backend/opennebula/templates.
For the OpenNebula backend a special server user is required in OpenNebula. To create a user named occi run the following command in your OpenNebula environment (replace $RANDOM with a secure password!):
oneuser create occi $RANDOM --driver server_cipher
Make sure that the user is member of the oneadmin group
oneuser chgrp occi oneadmin
After copying etc/backend/opennebula/opennebula.json to etc/backend/default.json you have to adapt the admin and
password attributes in that file to the ones you chose during the user creation.
If you want to use basic or digest authentication for users of rOCCI-server you have to create the users in OpenNebula
with the core auth driver. For a user named john the command may look like this
oneuser create john johnspassword --driver core
If you want to use X.509 authentication for your users, you need to create the users in OpenNebula with the X.509
driver. For a user named doe the command may look like this
oneuser create doe "/C=US/O=Doe Foundation/CN=John Doe" --driver x509
For more information have a look at the OpenNebula Documentation on x509 Authentication
rOCCI-server is using passenger to be deployed into a webserver.
rOCCI-server will work with the default passenger setup even though this setup is not recommended for production. To use advanced features such as X.509 authentication, you need to set up passenger with a separate Nginx or Apache webserver. Luckily, this is pretty easy. Detailed instructions can be found in the Passenger Documentation.
To use the standalone passenger with nginx run the following command (and maybe follow the installation steps) and rOCCI-server is running
bundle exec passenger start
To install rOCCI-server with RVM and either Nginx or Apache follow the steps below.
Detailed information on setting up and using RVM can be found on the RVM website.
Install RVM as sudo user (e.g. not root)
curl -L https://get.rvm.io | sudo bash -s stable
Select a user as a manager, and add him to rvm group - he will be responsible for installing new rubies.
usermod -a -G rvm $USER
If you intend to manage rOCCI-server from a different user account, you need to run the following command and logout and login again
rvm user gemsets
Setup RVM for rOCCI-server (change the ruby version to your favorite one)
cd rOCCI-server
rvm install ruby-1.9.3
rvm --rvmrc --create ruby-1.9.3@rOCCI-server
Note: If you intend to use several CAs for client certificate validation, you should use Apache as Nginx currently only allows to configure one CA file to use for client certificate validation.
Let passenger guide you through installing and or configuring Nginx (for apache see below) for you
bundle exec rvmsudo passenger-install-nginx-module
Edit the Nginx configuration (e.g. /opt/nginx/conf/nginx.conf) and insert a new server entry for the rOCCI server.
To use SSL you need a valid server certificate and for client verification you need a file containing all CAs you want
to use for verification (there currently seems to be no way to specify multiple CA files for verification). The entry
should look like this (adapt to your settings, especially $USER! and server_name):
server {
# change to the server name rOCCI-server should be accessible from
server_name localhost;
# change to the port rOCCI-server should listen on
listen 443;
# important, this needs to point to the public folder of your rOCCI-server
root /home/$USER/rOCCI-server/public;
ssl on;
# this should point to your server host certificate
ssl_certificate /etc/ssl/certs/server.crt;
# this should point to your server host key
ssl_certificate_key /etc/ssl/private/server.key;
# this should point to the Root CAs which should be used for client verification
ssl_client_certificate /etc/ssl/certs/ca.pem;
# if you have multiple CAs in the file above, you may need to increase the verify depht
ssl_verify_depth 10;
# set to optional, this tells nginx to attempt to verify SSL certificates if provided
ssl_verify_client optional;
passenger_enabled on;
# pass the subject of the client certificate to passenger
passenger_set_cgi_param SSL_CLIENT_S_DN $ssl_client_s_dn;
}
You have to start/restart Nginx before you can use rOCCI-server!
Let passenger guide you through installing and or configuring Apache for you
bundle exec rvmsudo passenger-install-apache2-module
Create a new VirtualHost in the sites-available directory of Apache (e.g. in /etc/apache2/sites-available/occi-ssl)
with the following content (adapt to your settings, especially $USER! and ServerName):
<VirtualHost *:443>
SSLEngine on
# for security reasons you may restrict the SSL protocol, but some clients may fail if SSLv2 is not supported
SSLProtocol all
# this should point to your server host certificate
SSLCertificateFile /etc/ssl/certs/server.crt
# this should point to your server host key
SSLCertificateKeyFile /etc/ssl/private/server.key
# directory containing the Root CA certificates and their hashes
SSLCACertificatePath /etc/ssl/certs
# set to optional, this tells Apache to attempt to verify SSL certificates if provided
SSLVerifyClient optional
# if you have multiple CAs in the file above, you may need to increase the verify depht
SSLVerifyDepth 10
# enable passing of SSL variables to passenger
SSLOptions +StdEnvVars
ServerName localhost
# important, this needs to point to the public folder of your rOCCI-server
DocumentRoot /home/$USER/rOCCI-server/public
<Directory /home/$USER/rOCCI-server/public>
Allow from all
Options -MultiViews
</Directory>
</VirtualHost>
You have to start/restart Apache before you can use rOCCI-server!
If you checked out rOCCI-server from GIT, then you can pull the latest version or a tagged version, update all required ruby gems using bundler and restart the server by touching the file tmp/restart.txt:
cd rOCCI-server
git pull
bundle install --deployment
mkdir tmp
touch tmp/restart.txt
If you have downloaded a new milestone from https://github.com/gwdg/rOCCI-server/downloads the steps are similar:
tar xzf rOCCI-server-X.tar.bz
cp rOCCI-server-X rOCCI-server
cd rOCCI-server
bundle install --deployment
mkdir tmp
touch tmp/restart.txt
To run the rspec scenario test run
bundle exec rspec
For manual testing it is recommended to use the OCCI client supplied as part of the rOCCI gem. For more information visit https://github.com/gwdg/rOCCI#client
Code Documentation for rOCCI by YARD
Continuous integration for rOCCI by Travis-CI
- Fork it.
- Create a branch (git checkout -b my_markup)
- Commit your changes (git commit -am "My changes")
- Push to the branch (git push origin my_markup)
- Use GitHubs Pull Requests to submit the code for review